Robert baillie main



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R. B. MAIN. BURNER FOR GAS FIRES.

No. 547,959." Pemtnted Oct. 15, 1895.

ANDREW BLRMIAM.PNUTD-UTHQWASHINFTDN. 0.0.

UNITED STATES' ATENT Ormes.

ROBERT BAILLIE MAIN, OF GLASGOW, SCOTLAND.

BURNER FOR GAS=F|RES.

SPECIFICATION forming part Of Letters Patent N0. 547,959, dated. October 15, 1895.

Application filed May 1, 1894. Serial NOK 509:7]-6- (N0 modem To all whom it may concern:

Be it known that I, ROBERT BAILLIE MAIN, gas cooking and heating engineer, a subject of the Queen of Great Britain and Ireland, residing at Argyle Works, Kinnin g Park, Glasgow, Scotland, have invented Improvements in Burners for Gas-Fires, of which the following is a specification.

My invention has for its object a burner for gas-tires which will altogether prevent firing back, as well as greatly reduce or lessen the hissing noise which is so common and disagreeable in gas-fires at present in use.

In carrying my invention into practice I make the outlets of the nozzles of the burner where combustion takes place ot' bell shape or widening, so as to flare upwardly, and with a flange or shoulder or other support at the lower ends or at any suitable distance from the top, and on these flanges, shoulders, or supports rests a sheet of perforated metal or gauze of any suitable material and having turnedup edges, so as to provide an upwardly-Haring screen and to facilitate placing and maintaining it in position, as well as to enable it to be easily removed for cleaning or renewal, if necessary.

In the drawings, Figure lis a section of one form of burner for gas-tires, and Fig. 2 is a plan of the same. Fig. 3 is a sectional view of the gauze-thimble.

A are the nozzles of the burners, the outlets a of which, where combustion takes place, as will be seen from the drawings, are wider than the inlets a2.

B is the mixing pipe or chamber, and O is the pipe which conveys the mixed gas and air to the nozzles A.

D are the Iianges or shoulders provided on the interior of the nozzles A to support the ganzes E, which are so shaped in the form ot' upwardly-Haring thimbles that when placed into the nozzles A the turned-up edges press against the sides of the nozzles, forming a tight joint to secure them rmly (though removably fitted) when pressed into position. The cold current of gas and air passing continuously through the perforated metal or ganzes E at a distance from point of ignition prevents them becoming overheated and so wasting away by direct contact with the ame of the fire, and also prevents the flame striking back and burning at injector.

I claim--h 1. A burner for gas-iires comprising an up- Wardly extending nozzle A, having an inlet ROBERT BAILLIE MAIN.

Witnesses:

E. LoUDoN, DAVID GIBB. 

